Aprilaire #4004 In-Line StrainerThe In-Line Strainer is a small device designed to keep debris from entering the solenoid valve and should be checked annually for the build-up of minerals and grit.
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MFG#: 4004

Aprilaire #4655 HumidistatThe Aprilaire #4655 is a low voltage humidistat designed to control humidification equipment. The 4655 replaces the older #4016 humidistat with new styling.
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MFG#: 4655